<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div class="wrap">
        <select name="" id="sheng">
          
        </select>
        <select name="" id="shi">
            <option value="请选择市">请选择市</option>
        </select>
        <select name="" id="qu">
            <option value="请选择区">请选择区</option>
        </select>
    </div>
    <script src="./check.js"></script>
    <script src="index.js"></script>

    <script>
        console.log(city)


        new Select({
            el: ".wrap",
            data: city
        })

    </script>
</body>

</html>